Three-quarters of the jobs created in the United States since the recession began pay barely more than minimum wage. However, the United States still has more millionaires and billionaires than any other country in the world. In this book, Tyler Cowan offers his explanation of this phenomenon: those who earn a lot take advantage of artificial intelligence in analyzing data and achieving better results; those who earn little have no experience with most new technologies and therefore have very poor prospects. Almost every sector of the economy is becoming less and less dependent on manual labor, a fact that is changing the world of work and wages forever. The quiet life ended somewhere in the middle.